EP1759485A2 - A method and system for securing a device - Google Patents

A method and system for securing a device

Info

Publication number
EP1759485A2
EP1759485A2 EP05750316A EP05750316A EP1759485A2 EP 1759485 A2 EP1759485 A2 EP 1759485A2 EP 05750316 A EP05750316 A EP 05750316A EP 05750316 A EP05750316 A EP 05750316A EP 1759485 A2 EP1759485 A2 EP 1759485A2
Authority
EP
European Patent Office
Prior art keywords
function
security token
actuation mechanism
host
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05750316A
Other languages
German (de)
French (fr)
Inventor
Ron Kozenitzky
Yanki Margalit
Dany Margalit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SafeNet Data Security Israel Ltd
Original Assignee
Aladdin Knowledge Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aladdin Knowledge Systems Ltd filed Critical Aladdin Knowledge Systems Ltd
Publication of EP1759485A2 publication Critical patent/EP1759485A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/316—User authentication by observing the pattern of computer usage, e.g. typical user behaviour
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/34—User authentication involving the use of external additional devices, e.g. dongles or smart cards
    • G06F21/35—User authentication involving the use of external additional devices, e.g. dongles or smart cards communicating wirelessly
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/388—Payment protocols; Details thereof using mutual authentication without cards, e.g. challenge-response
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/409—Device specific authentication in transaction processing
    • G06Q20/4097—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners
    • G06Q20/40975—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners using encryption therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2137—Time limited access, e.g. to a computer or data

Definitions

  • the present invention relates to the field of security. More
  • the present invention relates to a method and system for
  • a security token is a portable handheld device, usually of small size
  • connection may be wired (e.g. USB — Universal Serial Bus) or wireless (e.g. infrared or RF -
  • a typical example of a security token is the eToken manufactured
  • a security token may provide an extra level of assurance through a
  • PIN personal identification number
  • the device then displays a number which
  • identification number for each user is changed frequently, usually every five minutes or so.
  • the present invention is directed to a method and system for
  • securing a device e.g. a security token.
  • the method comprising the steps
  • the method further comprises disabling the
  • Fig. 1 schematically illustrates a communication between a security token and a host system, according to the prior art.
  • Fig. 2 schematically illustrates a security token, according to a preferred embodiment of the present invention.
  • Fig. 3 is a flowchart of a method for increasing the security of a
  • Fig. 4 is a table describing some of the possibilities for
  • Fig. 5 schematically illustrates a security token, according to a
  • Fig. 6 schematically illustrates a security token, according to
  • Fig. 1 schematically illustrates a communication between a security
  • the security token 20 is a token and a host system, according to the prior art.
  • the security token 20 is a token and a host system, according to the prior art.
  • the communication between the security token and the host system is carried out via communication
  • channel 30 which may be, for example, USB, RS232, IrDA (an infrared
  • Bluetooth a radio communication standard
  • the PIN Personal Identification Number
  • Fig. 2 schematically illustrates a security token, according to a
  • the security token 20 is
  • a connector 21 e.g. a USB connector
  • actuation mechanism 40 Upon actuating the physical actuation mechanism 40 a functionality of the security token becomes available for a time period. After the time period expires, the functionality of the security
  • the communication with the bank server is
  • bank server is firstly sent from the personal computer to the security
  • a hacker can remotely operate a user's computer with a program
  • remote input means such as keyboard and mouse.
  • Fig. 3 is a flowchart of a method for increasing the security of a
  • a default security functionality provided by the security token is disabled. For example, the communication between the security token and the host is suspended.
  • the user enters data using a user interface thereof.
  • the user enters an instruction of buying shares in a
  • the token For example, he turns on a switch.
  • the security token enables the disabled functionality (e.g. the communication with the host) for a time
  • Fig. 4 is a table describing some of the possibilities for
  • keyboards that comprise a USB socket, to which a security token can be connected, upon clicking a key of the keyboard, any key, the vibrations are
  • the security token can also be coupled with
  • infrared interface in order to intercept the transmissions from the mouse.
  • the token may enter into its active state for a
  • Fig. 5 schematically illustrates a security token, according to a
  • Security token 20 is coupled with a
  • the physical actuation mechanism 40 typically comprises a
  • control unit 23 e.g. a smart card chip.
  • security token uses a power source (not shown), which may be provided by
  • the communication enables communication between the host and the security token 20. According to one embodiment of the invention, the communication
  • the communication is enabled only for a time period, and afterwards the communication gets disabled again. According to another embodiment of the invention, the
  • actuation mechanism is de-actuated. According to another embodiment of the invention once the communication has been enabled, it stays that way.
  • Fig. 6 schematically illustrates a security token, according to
  • Security token 20 is
  • a communication interface 22 e.g. USB
  • the physical actuation mechanism 40 typically
  • a sensor 41 e.g. optical switch
  • corresponding circuitry not limited to a sensor 41 and corresponding circuitry
  • control unit 23 e.g. a smart card chip
  • the security token is coupled with a power source (not shown).
  • the security token is provided with a clock
  • the clock device 25 is connected to the control unit 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Accounting & Taxation (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • General Business, Economics & Management (AREA)
  • Software Systems (AREA)
  • Strategic Management (AREA)
  • Finance (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Social Psychology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Storage Device Security (AREA)
  • Hardware Redundancy (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The present invention is directed to a method and system for securing a device (e.g. a security token). The method comprising the steps of: providing physical actuation mechanism (e.g. a switch) to the device; disabling some function(s) of the device (e.g. the communication channel with the host); upon actuating the physical actuation mechanism, enabling the disabled function(s). The method further comprises disabling the enabled function(s) of the device after a time period, or after the enabled function(s) has been completed. This way the disabled function(s) of the device can be activated only by the user thereof, in contrary to a hacker, which cannot physically access the actuation mechanism.

Description

A METHOD AND SYSTEM FOR SECURING A DEVICE
Field of the Invention The present invention relates to the field of security. More
particularly, the present invention relates to a method and system for
securing a device.
Background of the Invention
A security token is a portable handheld device, usually of small size,
for providing security related functionalities such as authentication,
authorization to access a network, password related functionality and so
forth.
The first generation of security tokens were used merely as storage
means for a PIN (Personal Identification Number). However, the recent
generation of security tokens provide smartcard functionality, thus
providing a programming ability which can be used for a wide range of functionalities such as one time password to ciphering, PKI (Public Key
Infrastructure), digital signatures and so on.
As a peripheral device to a host, a security token has to be
connected to the host via communication means. Such a connection may be wired (e.g. USB — Universal Serial Bus) or wireless (e.g. infrared or RF -
Radio Frequency like Bluetooth).
A typical example of a security token is the eToken manufactured
by Aladdin Knowledge Systems, www.eAladdin.com.
A security token may provide an extra level of assurance through a
method known in the art as two-factor authentication: the user has a personal identification number (PIN), which authorizes him as the owner
of that particular device. The device then displays a number which
uniquely identifies the user to a service, allowing the user to log in. The
identification number for each user is changed frequently, usually every five minutes or so.
One of the common applications of security tokens is in the field of
banking. In order to assure that only the owner of an account is able to
initiate banking transactions on his account, the owner is provided with a security token, whereby its presence is verified by the host system
whenever the owner accesses his bank account. At the time the security
token is connected to the host (or terminal), a hacker has a theoretical
chance to take control over the bank account since the security token is connected to the computer. It is an object of the present invention to provide a method and
system for securing a device.
It is a further object of the present invention to provide a method
and system for increasing the security level provided by a security token
while the security token is connected to a host.
Other objects and advantages of the invention will become apparent
as the description proceeds.
Summary of the Invention
The present invention is directed to a method and system for
securing a device (e.g. a security token). The method comprising the steps
of: providing physical actuation mechanism (e.g. a switch) to the device;
disabling some function(s) of the device (e.g. the communication channel
with the host); upon actuating the physical actuation mechanism, enabling
the disabled function(s). The method further comprises disabling the
enabled function(s) of the device after a time period, or after the enabled
function(s) has been completed. This way the disabled function(s) of the
device can be activated only by the user thereof, in contrary to a hacker,
which cannot physically access the actuation mechanism.
Brief Description of the Drawings
The present invention may be better understood in conjunction with
the following figures:
Fig. 1 schematically illustrates a communication between a security token and a host system, according to the prior art.
Fig. 2 schematically illustrates a security token, according to a preferred embodiment of the present invention.
Fig. 3 is a flowchart of a method for increasing the security of a
security token, according to a preferred embodiment of the invention.
Fig. 4 is a table describing some of the possibilities for
implementing an actuating switch/sensor.
Fig. 5 schematically illustrates a security token, according to a
preferred embodiment of the invention.
Fig. 6 schematically illustrates a security token, according to
another preferred embodiment of the invention. Detailed Description of Preferred Embodiments
The detailed description of the preferred embodiments refer herein to a security token. However, it should be noted that the invention may be
implemented by any device. The examples herein refer to a security token,
since in addition to the security-related functionality it provides, also its operation should be secured, thereby gaining higher security level.
Fig. 1 schematically illustrates a communication between a security
token and a host system, according to the prior art. The security token 20
is an external device to the host system 30. The communication between the security token and the host system is carried out via communication
channel 30, which may be, for example, USB, RS232, IrDA (an infrared
communication standard), Bluetooth (a radio communication standard),
Wi-Fi, and so forth. Upon inserting the security token 20 into the
appropriate socket of the host system 10 (in case of wired communication), the PIN (Personal Identification Number) is provided by the security
token 20 to the host system 10. Such an authentication process is called in
the art "One Factor Authentication".
Fig. 2 schematically illustrates a security token, according to a
preferred embodiment of the present invention. The security token 20 is
coupled with a connector 21 (e.g. a USB connector) to a host, and physical
actuation mechanism 40. Upon actuating the physical actuation mechanism 40 a functionality of the security token becomes available for a time period. After the time period expires, the functionality of the security
token becomes unavailable until the next actuation.
The method of the present invention will be better understood with
a practical example of a user that secures his activity to an online bank by
a security token. In this particular example, the user communicates with
the bank server over the Internet by a browser that runs on the user's
personal computer (i.e. a host). The communication with the bank server is
enabled only when the security token is connected to the personal computer. For example, data to be sent from the user's computer to the
bank server is firstly sent from the personal computer to the security
token where it is encrypted with a private key of the user, and therefrom
returned to the personal computer which sends it (in its encrypted form) to the bank server. Thus, a hacker that intends to perform illegal operations
on the user's bank account can do it only when the security token is
connected to the personal computer.
There are a variety of hacking methods known in the art. For
example, a hacker can remotely operate a user's computer with a program
such as Remote Administrator, upon which a hacker can view the user's
screen and also control the user interface of the remote computer by the
remote input means, such as keyboard and mouse. Thus, a hacker can
actually take control over a user's computer even without the knowledge of the user. However, if the user has installed a security token to secure his
activity with the bank's server, the hacker can perform operations on the
user's bank account only when the token is plugged into the user's computer.
Unfortunately the security token still does not cover all the
possibilities of a hacker to remotely perform transactions in the user's bank account via the user's computer, since the hacker can do it while the
security token is plugged in. According to the present invention the
possibilities to remotely operate the user's bank account by a hacker are
diminished by adding physical actuation mechanism to the security token. By the physical actuation mechanism only a user that can physically access these means can actuate his security token. Thus, before sending
data to the bank server, a user has to actuate his security token
physicallv. Consequently, a hacker that tries to remotely control the user's
computer will be able to do so only in a short time period after the user has actuated his security token.
Fig. 3 is a flowchart of a method for increasing the security of a
security token, according to a preferred embodiment of the invention.
Referring to the above example: On block 101, a default security functionality provided by the security token is disabled. For example, the communication between the security token and the host is suspended. On block 102, the user enters data using a user interface thereof.
For example, the user enters an instruction of buying shares in a
stock market. Typically the user has to click a SEND button or alike
in order to trigger sending the information to the bank's server, however, since the security token is disabled, the user has to
perform a preliminary operation for enabling this operation.
On block 103, the user actuates the actuation mechanism coupled to
the token. For example, he turns on a switch.
As a result, on block 104 the security token enables the disabled functionality (e.g. the communication with the host) for a time
period.
On block 105, if the user clicks on the SEND button of the user
interface during this time period, the token performs the disabled
functionality, i.e. communicates with the user's personal computer in order to get the data, encrypts it and returns it to the security
token, from which the encrypted data is sent to the corresponding
server.
On block 106, which takes place after the time period expires, the
token returns to its disabled state. According to a preferred
embodiment of the invention the token returns to its disabled state
after the started operation has been ended. For example, the token
returns to its disabled state only after the encrypted data has been
sent to the host, even if it takes more than the planned time period. This way only the user may enable the disabled functionality of a token, since the enablement is carried out only by physical means to the
host, an operation which can be carried out only by physical contact with
the token. A hacker which gets a remote control over the user's computer
still cannot actuate the token since he cannot touch it and as a result the
security provided by the security token becomes higher than in any other
alternative, i.e. without a physical trigger.
Fig. 4 is a table describing some of the possibilities for
implementing an actuating switch/sensor. Those skilled in the art will
appreciate that other alternatives can be used.
A more sophisticated way to achieve the same results can be by
adding to the security token a sensor that is capable of detecting any
movement of the token, e.g. as a result of human touch. For example, in
keyboards that comprise a USB socket, to which a security token can be connected, upon clicking a key of the keyboard, any key, the vibrations are
sensed by a corresponding sensor of the security token and its disabled
functionality gets enabled for a time period. This way the user actually
doesn't have to take care of activating the security token, since it is carried automatically.
Another way to automate the process can be achieved by infrared
communication means, as follows: assuming that the mouse attached to the user's computer communicates with the host by infrared
communication means, the security token can also be coupled with
infrared interface in order to intercept the transmissions from the mouse.
Upon indication of a click, the token may enter into its active state for a
time period.
Fig. 5 schematically illustrates a security token, according to a
preferred embodiment of the invention. Security token 20 is coupled with a
communication interface 22 (e.g. USB), to be connected to a host via
connector 21. The physical actuation mechanism 40 typically comprises a
sensor 41 (e.g. optical switch) and corresponding circuitry (not shown). The
communication interface 22 and the physical actuation mechanism 40 are
connected to a control unit 23 (e.g. a smart card chip). Typically, the
security token uses a power source (not shown), which may be provided by
its own source (e.g. a battery), or an external source (e.g. from the host by
a USB interface).
In a typical implementation of the present invention, the
communication between a host (not shown) and the security token 20 is
disabled. Upon actuating the physical actuation mechanism 40, the control
unit 23 which is connected to the physical actuation mechanism 40,
enables communication between the host and the security token 20. According to one embodiment of the invention, the communication
is enabled only for a time period, and afterwards the communication gets disabled again. According to another embodiment of the invention, the
communication remains enabled as long as the physical actuation
mechanism is actuated, and becomes again disabled when the physical
actuation mechanism is de-actuated. According to another embodiment of the invention once the communication has been enabled, it stays that way.
Fig. 6 schematically illustrates a security token, according to
another preferred embodiment of the invention. Security token 20 is
coupled with a communication interface 22 (e.g. USB), to be connected to a
host via connector 21. The physical actuation mechanism 40 typically
comprises a sensor 41 (e.g. optical switch) and corresponding circuitry (not
shown). The communication interface 22 and the physical actuation
mechanism 40 are connected to a control unit 23 (e.g. a smart card chip).
Typically, the security token is coupled with a power source (not shown).
In a typical implementation of the present invention, the
communication between a host (not shown) and the security token 20 is
disabled. Upon actuating the physical actuation mechanism 40, the control unit 23 which is connected to the physical actuation mechanism 40,
enables the communication between the host and the security token 20 for
predefined a time period, after which the communication is re-disabled. In order to cont the time period, the security token is provided with a clock
device 25. Typically the clock device 25 is connected to the control unit 23.
Those skilled in the art will appreciate that the invention can be
embodied by other forms and ways, without losing the scope of the
invention. The embodiments described herein should be considered as
illustrative and not restrictive.

Claims

1. A method for increasing a security level of a device, said method comprising:
- providing a physical actuation mechanism for actuating said device;
- disabling at least one function of said device; and upon actuating said physical actuation mechanism, enabling said at least one function.
2. A method according to claim 1, further comprising: subsequent to said actuating, again disabling said at least one function of said device.
3. A method according to claim 2, wherein said at least one function of said device is again disabled after a preselected time period subsequent to said actuating.
4. A method according to claim 2, wherein said at least one function of said device is again disabled after said function has been completed.
5. A method according to claim 1, wherein said device is selected from a group comprising: a computer, a security token.
6. A method according to claim 1, wherein said physical actuation mechanism is selected from a group comprising: at least one mechanical sensor, at least one optical sensor, at least one electrical sensor, at least one magnetic sensor, at least one infrared sensor, and at least one voice sensor.
7. A method according to said claim 1, wherein said at least one function of said device is selected from a group comprising: communicating with a host, receiving input from a host, sending output to a host, authenticating a user, ciphering data, digitally signing data.
8. A system for increasing a security level of a device, said system comprising:
- physical actuation mechanism; - a control module connected to said physical actuation mechanism and operative to enable at least one function of said device after said physical actuation mechanism is actuated.
9. A system according to claim 8, further comprising a clock device, for limiting the enablement to a preselected time period.
10. A system according to claim 8, wherein said device is selected from a group comprising: a computer, a security token.
11. A system according to claim 8, wherein said physical actuation mechanism is selected from a group comprising: at least one mechanical sensor, at least one optical sensor, at least one electrical sensor, at least one magnetic sensor, at least one infrared sensor, at least one voice sensor.
12. A system according to claim 8, wherein said at least one function of said device is selected from a group comprising: communicating with a host, receiving input from a host, sending output to a host, authenticating a user, ciphering data, digitally signing data.
EP05750316A 2004-06-18 2005-06-09 A method and system for securing a device Withdrawn EP1759485A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/870,034 US20050283633A1 (en) 2004-06-18 2004-06-18 Method and system for securing a device
PCT/IL2005/000621 WO2005122689A2 (en) 2004-06-18 2005-06-09 A method and system for securing a device

Publications (1)

Publication Number Publication Date
EP1759485A2 true EP1759485A2 (en) 2007-03-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05750316A Withdrawn EP1759485A2 (en) 2004-06-18 2005-06-09 A method and system for securing a device

Country Status (3)

Country Link
US (1) US20050283633A1 (en)
EP (1) EP1759485A2 (en)
WO (1) WO2005122689A2 (en)

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Publication number Publication date
US20050283633A1 (en) 2005-12-22
WO2005122689A2 (en) 2005-12-29
WO2005122689A3 (en) 2006-07-20

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